linux-kernel - Re: large packet loss take2 2.6.31.x

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Message-ID: <20091127213640.GA2611@ami.dom.local>
Date:	Fri, 27 Nov 2009 22:36:40 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Caleb Cushing <xenoterracide@...il.com>
Cc:	Frans Pop <elendil@...net.nl>, Andi Kleen <andi@...stfloor.org>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	e1000-devel@...ts.sourceforge.net
Subject: Re: large packet loss take2 2.6.31.x

On Fri, Nov 27, 2009 at 01:07:53PM -0500, Caleb Cushing wrote:
> 2.6.32-rc8 seemed to be affected (guess. because my net didn't come up
> on reboot. further testing will likely verify) also during reboots I
> found out that the version I've been thinking is good is afflicted. I
> supposed maybe I should try bisecting again? starting with that point.
> not sure it'll do us much good if that version was able to slip by for
> so long. I really hate intermittent bugs.

I doubt bisecting is a good idea with so unpredictable bug. First, you
should make sure it's not a hardware problem, so go back to the kernel
you trust most, and give it a really long try with a few recompilations
after slightly changing the config. Btw, I wonder if you tried e1000e
module parameters like IntMode=0 or 1.

Jarek P.
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